/Engine/Source/Runtime/AudioMixer/Public/AudioMixerDevice.h
Builds a 3D channel map for a spatialized source.
void Get3DChannelMap ( const int32 InSubmixNumChannels, const [FWaveInstance](API\Runtime\Engine\FWaveInstance) * InWaveInstance, const float EmitterAzimuth, const float NonSpatiliazedFactor, const [TMap](API\Runtime\Core\Containers\TMap)< [EAudioMixerChannel::Type](API\Runtime\AudioMixerCore\EAudioMixerChannel__Type), float > * InOmniMap, float InDefaultOmniValue, [Audio::FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & OutChannelMap )